Mil. WALKER ON DIPTEliA COLLECTED IN AMBOYNA. 163 



62. Dacus sepsoides, n. s. Mas. iEneus, gracilis, capite piceo ni- 

 gro antice ferrugineo vitta albida, oculis albido marginatis, antennis 

 pallide fulvis, arista nuda, thorace vitta cinerea, abdomine cyaneo sub- 

 compresso basi viridi segmentis purpureo marginatis, pedibus nigris, 

 robustis, femoribus rufis, alis vix cinerascentibus macula apicali nigri- 

 cante, halteribus testaceis. 



Male, ^neous, slender. Head piceous black above, ferruginous in 

 front, where there is a whitish stripe ; epistoma prominent. Eyes 

 bordered with whitish. Antennae pale tawny, nearly reaching the 

 epistoma ; 3rd joint very elongate-conical ; arista bare. Thorax with 

 a cinereous stripe ; pectus cinereous. Abdomen blue, somewhat com- 

 pressed, mostly green towards the base, a little longer and narrower 

 than the thorax ; hind borders of the segments purplish. Legs black, 

 stout ; femora red ; fore coxae with whitish pile. Wings hardly grey- 

 ish, with a blackish apical spot ; praebrachial vein curved towards the 

 cubital on approaching the tip of the wing; discal transverse vein 

 upright, nearly straight, parted by half its length from the border, and 

 by much more than its length from the praebrachial transverse ; hal- 

 teres testaceous. Length of the body 4 lines ; of the wings 6 lines. 



63. Dacus signatipes, n.s. Mas. Cyanescente-niger, gracihs, linea- 

 ris, capite argenteo, antennis fulvis, arista nuda, abdomine cupreo- 

 nigro fusiformi, pedibus fulvis, tibiis posticis femoribusque apice 

 nigris, tibiis posterioribus basi nigris, alis cinereis fascia lata postice 

 abbreviata maculaque magna apicali fuscis. 



Male. Bluish black, slender, linear. Head silvery white about the 

 eyes. Antennae tawny ; arista bare. Abdomen cupreous black, fusi- 

 form, a little longer than the thorax. Legs tawny, slender ; femora 

 black towards the tips ; posterior tibiae black at the base ; hind tibiae 

 with black tips. Wings grey, with a brown band which does not ex- 

 tend to the hind border, and with a large apical brown spot ; veins 

 black ; discal transverse vein straight, upright, parted by less than its 

 length from the border, and by about four times its length from the 

 praebrachial transverse ; ])ostbrachial vein very near the praebrachial. 

 Length of the body 3 lines ; of the wings 5 lines. 



Geu. Entcoptera. Macg. 



64. Enicoptera RUFivEN-TRis, n. s. Fcem. Fulva, elongata, nitens, 

 capite punctis tribus nigris, antennarum articulo 3° longi-conico, 

 arista subpubescente, thorace nigro-aeneo, vitta dorsali humeris scu- 

 tellique lateribus fulvis, abdomine rufescente fulvo cylindrico, femori- 

 bus posterioribus nigro-spinosis, tibiis tarsisque anticis piceis, alis lon- 

 giusculis subfuscescentibus apud discum sublimpidis, fasciis duabus 

 fuscis incompletis diffusis fuscis, halteribus testaceis. 



Female. Tawny, elongate, shining, almost without hairs and bristles. 

 Head nearly as broad as the thorax, with a black ])oint on the front 

 above the antennae, and with two black points on the epistoma, which 



